Bottle cap and reagent container
By using a puncture membrane made of foamed neoprene rubber, the problems of reagent evaporation and condensation in reagent containers were solved, thereby improving reagent stability and detection accuracy.
Patent Information
- Application Number
- CN202520003900.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing reagent container cap puncture films are difficult to prevent reagent evaporation and condensation, affecting reagent stability, and are prone to attracting dust or poor rebound.
The puncture membrane, made of foamed neoprene rubber, is sealed to the cap body. It has good memory properties and chemical resistance, ensuring that the reagent container is isolated from the outside world and quickly springs back to its original position after the pipette is withdrawn.
It effectively prevents reagent evaporation and condensation, maintains reagent stability, reduces dust adsorption, ensures detection accuracy, and does not react with chemical reagents.
Smart Images
Figure CN223591422U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical consumables, in particular to a bottle cap and a reagent container. BACKGROUND
[0002] In the process of analyzing and detecting samples, liquid reagents are often added to cooperate with the detection of corresponding items. In actual detection, it is found that the reagent container is easily affected by the temperature, humidity changes and air flow of the environment, and the like, and is prone to generate condensate water in the reagent container, or the reagent contained in the reagent container is prone to volatilization. The mixture of the generated condensate water and the reagent will reduce the concentration of the reagent, while the volatilization of the reagent will increase the concentration of the reagent, and the change of the concentration of the reagent will directly affect the final detection result.
[0003] In the prior art, a puncture film is arranged on the bottle cap of the reagent container to alleviate the problems of condensate water generation and reagent volatilization. However, in actual application, it is found that the existing puncture film cannot avoid the generation of condensate water and reagent volatilization, and at least has the problems of easy dust adsorption or poor rebound effect after the withdrawal of the pipette needle, and the like. Therefore, the existing puncture film has the problem of affecting the stability of the reagent, and needs to be improved. CONTENT OF THE UTILITY MODEL
[0004] The main purpose of the present application is to provide a bottle cap and a reagent container to solve the problem of the puncture film of the bottle cap of the reagent container in the prior art affecting the stability of the reagent.
[0005] According to an aspect of the present application, the present application provides a bottle cap, which is used to cover the bottle mouth of a reagent container, and comprises:
[0006] a cap body, which is used to be connected with the bottle mouth of the reagent container, and has a through hole;
[0007] a puncture film, which is connected with the cap body and seals the through hole, and corresponds to the bottle mouth;
[0008] wherein the material of the puncture film is foamed chloroprene rubber.
[0009] Further, the cap body has opposite first and second ends along the axial direction of the through hole, the cap body is connected with the bottle mouth of the reagent container from the first end, and the inner edge of the second end is convex to form a ring portion away from the first end;
[0010] The bottle cap further comprises a paste layer, which is sealingly connected between the cap body and the puncture film, and is located at the outer periphery of the ring portion.
[0011] The thickness of the adhesive layer is less than or equal to the thickness of the ring portion along the axial direction of the through hole.
[0012] Further, the cap body has opposite first and second ends along the axial direction of the through hole, the cap body is connected to the bottle mouth of the reagent container from the first end, and the puncture film is sealed and connected to the second end by ultrasonic welding and / or fitting.
[0013] Further, the cap body has opposite first and second ends along the axial direction of the through hole, the cap body is connected to the bottle mouth of the reagent container from the first end, and the puncture film is integrally formed on the second end of the cap body.
[0014] Further, the through hole includes a first hole and a second hole in communication with each other, the first hole has a larger diameter than the second hole, so that a step surface is formed at the connection between the second hole and the first hole and faces the first hole, the puncture film is arranged in the first hole and is sealed and connected to the step surface and / or the hole wall of the first hole, and the cap body is connected to the bottle mouth of the reagent container from the first hole.
[0015] Further, the cap body is divided into a first section and a second section along the axial direction of the through hole, the cap body is connected to the bottle mouth of the reagent container from the first section, and the puncture film is arranged in the second section or at the connection between the first section and the second section.
[0016] The outer diameter of the second section is smaller than the outer diameter of the first section.
[0017] Further, the cap body is divided into a first section and a second section along the axial direction of the through hole, the cap body is connected to the bottle mouth of the reagent container from the first section, and the puncture film is arranged in the second section or at the connection between the first section and the second section.
[0018] The inner wall of the through hole corresponding to the first section includes a continuous portion and a hollow portion, the hollow portion is away from the second section, and the continuous portion is close to the second section and is used for sealed connection with the bottle mouth of the reagent container.
[0019] Further, the puncture film is provided with a slit, the slit is cracked under the extrusion of the pipette needle to allow the pipette needle to pass through the puncture film, and the slit is closed to seal the through hole after the pipette needle is withdrawn; wherein the length of the slit is less than the diameter of the through hole.
[0020] Further, the puncture film is provided with a plurality of slits, and the plurality of slits intersect on the central axis of the through hole.
[0021] And / or, the ratio of the length of the slit to the thickness of the puncture film is greater than or equal to 6.
[0022] According to another aspect of the present application, the present application also provides a reagent container, comprising a container body configured to form a receiving cavity and a bottle mouth, the bottle mouth being in communication with the receiving cavity; and
[0023] The reagent container further comprises the bottle cap of any one of the above, which is capped on the bottle mouth.
[0024] In the bottle cap of the present application, the puncture film is sealingly connected to the cap body and the through hole is sealed, so that the reagent contained in the reagent container can be isolated from the outside world, avoiding the problems of reagent evaporation and condensed water generation. The puncture film is made of foamed neoprene, so that the puncture film has good memory characteristics. After the pipette needle is withdrawn from the puncture film, the puncture film can quickly rebound and reset, and is not easy to adsorb dust. In addition, the puncture film also has excellent chemical reagent resistance and will not fall off due to chemical reaction with chemical reagents. BRIEF DESCRIPTION OF DRAWINGS
[0025] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:
[0026] Figure 1 It is a schematic view of the bottle cap in an embodiment disclosed by the present application, which shows that the puncture film is attached to the second end.
[0027] Figure 2 It is an exploded view of the bottle cap in an embodiment disclosed by the present application.
[0028] Figure 3 It is a schematic view of the cap body in an embodiment disclosed by the present application.
[0029] Figure 4 It is a schematic view of the bottle cap in an embodiment disclosed by the present application, which shows that the puncture film is attached to the stepped surface.
[0030] Figure 5 It is a schematic view of the bottle cap in an embodiment disclosed by the present application, which shows that the puncture film is integrally formed with the cap body.
[0031] Figure 6 It is a schematic view of the bottle cap in an embodiment disclosed by the present application, which shows that the outer diameter of the second section is smaller than that of the first section.
[0032] Figure 7A schematic view of a bottle cap in an embodiment disclosed in the present application, in which the outer diameter of the second section is smaller than the outer diameter of the first section, and the hollowed part and the continuous part are shown.
[0033] Figure 8 A schematic view of a bottle cap in an embodiment disclosed in the present application, in which the hollowed part and the continuous part are shown.
[0034] Figure 9 A schematic view of a reagent container in an embodiment disclosed in the present application.
[0035] In the above drawings, the following reference signs are used:
[0036] Bottle cap 100, cap body 10, through hole 11, first hole 111, second hole 112, first end 12, second end 13, ring part 14, first section 15, continuous part 151, hollowed part 152, second section 16, step surface 17, puncture film 20, cut 21, adhesive layer 30, reagent container 200, container body 210. DETAILED DESCRIPTION
[0037] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0038] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component and / or a combination thereof.
[0039] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth in these embodiments do not limit the scope of the present application. It should be understood that the various parts of the drawings are not necessarily drawn to scale. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the description of the present application. In all examples shown and discussed herein, any specific value should be interpreted as merely an example, and not as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar reference signs and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0040] Please refer to Figures 1-2As shown, in one aspect, the present application provides a bottle cap 100 for covering a bottle mouth of a reagent container 200. The bottle cap 100 comprises a cap body 10 and a puncture film 20. The cap body 10 is used to connect with the bottle mouth of the reagent container 200, and the cap body 10 has a through hole 11. The puncture film 20 is connected with the cap body 10 and seals the through hole 11, so that when the bottle cap 100 covers and seals the bottle mouth, the reagent contained in the reagent container 200 can be isolated from the outside world, thereby avoiding the volatilization of the reagent. The puncture film 20 also has a heat insulation effect, which can effectively prevent heat exchange between the inside of the reagent container 200 and the outside, thereby avoiding the generation of condensed water.
[0041] Further, the puncture film 20 corresponds to the bottle mouth, so as to facilitate the pipette needle to pass through the puncture film 20 and extend into the reagent container 200 to suck the reagent. The puncture film 20 is made of foamed neoprene, so the puncture film 20 has good memory characteristics. After the pipette needle exits the puncture film 20, the puncture film 20 can quickly rebound and reset, thereby continuing to cooperate with the cap body 10 to close the bottle mouth. The puncture film 20 made of foamed neoprene also has the advantage of not easily adsorbing dust. In addition, the puncture film 20 also has excellent chemical reagent resistance and will not appear powdering phenomenon due to chemical reaction with chemical reagents.
[0042] Further, please refer to Figures 3-4 As shown, the cap body 10 has opposite first and second ends 12 and 13 along the axial direction of the through hole 11. The cap body 10 is connected with the bottle mouth of the reagent container 200 from the first end 12.
[0043] In one embodiment, the puncture film 20 is connected with the cap body 10 by adhesion. The inner edge of the second end 13 is convexly formed with a ring portion 14 away from the first end 12. The bottle cap 100 further comprises a paste layer 30. The paste layer 30 is sealingly connected between the cap body 10 and the puncture film 20 and located at the outer periphery of the ring portion 14. Thus, the reagent contained in the reagent container 200 is separated from the paste layer 30 by the ring portion 14, thereby avoiding the contact between the contained reagent and the paste layer, which causes the contamination of the reagent by the paste layer 30 and affects the detection accuracy.
[0044] Further, along the axial direction of the through hole 11, the thickness of the paste layer 30 is less than or equal to the thickness of the ring portion 14. Thus, the separation effect of the paste layer 30 and the contained reagent is further improved.
[0045] Preferably, the thickness of the adhesive layer 30 is less than the thickness of the ring portion 14. Even in the case of pouring the reagent container 200, the reagent contained in the reagent container 200 will not contact the adhesive layer 30 under the block of the ring portion 14.
[0046] Further, in an embodiment, the puncture membrane 20 can also be sealed and connected to the second end 13 by at least one of ultrasonic welding and embedding.
[0047] Further, referring to Figure 5 in an embodiment, the puncture membrane 20 is integrally formed with the second end 13 of the cap body 10. Thus, the assembly step of sealing and connecting the puncture membrane 20 and the cap body 10 can be avoided, and the integrally formed cap body 10 and puncture membrane 20 have better connection strength.
[0048] In an embodiment, referring to Figures 6-7 the cap body 10 includes a first section 15 and a second section 16. The first end 12 is located at an end of the first section 15 away from the second section 16, and the second end 13 is located at an end of the second section 16 away from the first section 15.
[0049] Referring to Figures 2-4 the through hole 11 includes a first hole 111 and a second hole 112 that are in communication with each other. The first section 15 is configured to form the first hole 111, and the second section 16 is configured to form the second hole 112.
[0050] The diameter of the first hole 111 is greater than the diameter of the second hole 112, so that a step surface 17 is formed at the connection between the second hole 112 and the first hole 111, and the step surface 17 faces the first hole 111.
[0051] The puncture membrane 20 is arranged in the first hole 111, and the puncture membrane 20 is sealed and connected to at least one of the step surface 17 or the hole wall of the first hole 111, so that the puncture membrane 20 is sealed and connected at the connection between the first hole 111 and the second hole 112.
[0052] Further, the cap body 10 is connected to the bottle opening of the reagent container 200 from the first hole 111, and the opening end of the bottle opening abuts against the puncture membrane 20 and is limited by the step surface 17, so that the puncture membrane 20 is sealed and connected in the cap body 10.
[0053] Further, referring to Figures 6-7As shown, in an embodiment, the second section 16 has an outer diameter smaller than that of the first section 15. This reduces the surface area of the second section 16 exposed to the external environment, thereby reducing the risk of condensation water formation.
[0054] Further, the outer diameter of the second section 16 can gradually decrease in a direction away from the first section 15; or, the outer diameter of the second section 16 can also be uniform.
[0055] Further, as shown in FIG. 1, the bottle cap 100 is provided with a through hole 11. Figures 7-8 As shown, in an embodiment, the inner wall of the through hole 11 corresponding to the first section 15 comprises a continuous portion 151 and a hollow portion 152. The hollow portion 152 is away from the second section 16, and the continuous portion 151 is close to the second section 16 and connected between the hollow portion 152 and the second section 16. The hollow portion 152 and the continuous portion 151 are both used for fixed connection with the bottle mouth, and the continuous portion 151 is also used for sealed connection with the bottle mouth.
[0056] By providing the hollow portion 152, the contact area of the bottle cap 100 with the bottle mouth can be effectively reduced, thereby reducing the heat conduction area of the bottle cap 100 to the bottle mouth, and further reducing the risk of condensation water formation.
[0057] Further, the bottle cap 100 can be threadedly connected to the bottle mouth, or can be fitted or inserted on the bottle mouth by interference. Herein, no limitation is made.
[0058] Further, as shown in FIG. 1, the bottle cap 100 is provided with a through hole 11. Figures 1-2 and Figures 4-6 As shown, the puncture film 20 is provided with a slit 21. The slit 21 is ruptured under the extrusion of the pipette needle to allow the pipette needle to pass through the puncture film 20, so as to facilitate the pipette needle to smoothly pass through the puncture film 20, and avoid false alarm caused by the pipette needle mistakenly thinking that it hits the needle during the process of passing through the puncture film 20.
[0059] Further, the length of the slit 21 is smaller than the diameter of the through hole 11, so that the slit 21 only corresponds to the through hole 11, thereby facilitating the pipette needle to pass through the puncture film 20, and quickly sealing the through hole 11 after the pipette needle exits the puncture film 20.
[0060] After the pipette needle exits the puncture film 20, the puncture film 20 quickly closes the slit 21 based on its elastic recovery capability, thereby sealing the through hole 11. In turn, in the case that the pipette needle is not punctured, the isolation between the inside of the reagent container 200 and the outside can be ensured.
[0061] Further, the puncture film 20 is provided with a plurality of slits 21 intersecting the central axis of the through hole 11 to facilitate the pipette to pass through the puncture film 20 more smoothly.
[0062] Further, the puncture film 20 can be provided with two slits 21, which can be cross-shaped to divide the puncture film 20 into four equal parts. In addition, the smaller angle after the intersection of the two slits 21 is less than 90 degrees, and the larger angle is greater than 90 degrees.
[0063] The puncture film 20 can also be provided with three slits 21 or four slits 21, which are not limited here.
[0064] Further, the ratio of the length of the slit 21 to the thickness of the puncture film 20 is greater than or equal to 12. Specifically, when the film thickness of the puncture film 20 is 1, the length of the slit 21 is at least 12, thereby ensuring that the puncture film 20 quickly recovers to the state of sealing the through hole 11 after the pipette is withdrawn.
[0065] On the other hand, referring to Figure 9 The application also provides a reagent container 200, which comprises a container body 210 configured to form a receiving cavity and a bottle opening, the bottle opening being in communication with the receiving cavity, and the receiving cavity being used to accommodate reagents.
[0066] Further, the reagent container 200 further comprises the bottle cap 100 described above, which is combined with the bottle opening, thereby cooperating with the reagent container 200 to isolate the accommodated reagents from the external environment.
[0067] The reagent container 200 in the application has the beneficial effects of any one of the embodiments described above, and therefore will not be described here.
[0068] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. However, it is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein relative to the other device or structure is inverted, then a spatially relative term such as "above" can be interpreted as meaning "below" or "below" can be interpreted as meaning "above". The device can also be oriented in other ways (rotated at 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0069] In addition, it should be pointed out that the use of "first", "second" and the like words to qualify parts, is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.
[0070] The preferred embodiments of the present application have been described above with the purpose of enabling not to limit the scope of protection of the present application, but of enabling a person skilled in the art to make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.
Claims
1. A bottle cap for capping a mouth of a reagent container, characterized by, The bottle cap comprises: a cap body for connecting with a bottle mouth of the reagent container, the cap body having a through hole; a puncture membrane connected with the cap body and sealing the through hole, and the puncture membrane corresponding to the bottle mouth; wherein the puncture membrane is made of foamed chloroprene rubber.
2. The bottle cap according to claim 1, wherein The cap body has opposite first and second ends along the axial direction of the through hole, the cap body being connected with the bottle mouth of the reagent container from the first end, and the inner edge of the second end being outwardly protruded to form a ring portion away from the first end; The bottle cap further comprises a sticking layer, which is sealingly connected between the cap body and the puncture membrane and located at the outer periphery of the ring portion; wherein the thickness of the sticking layer is less than or equal to the thickness of the ring portion along the axial direction of the through hole.
3. The bottle cap according to claim 1, wherein The cap body has opposite first and second ends along the axial direction of the through hole, the cap body being connected with the bottle mouth of the reagent container from the first end, and the puncture membrane being sealingly connected at the second end by ultrasonic welding and / or fitting.
4. The bottle cap according to claim 1, wherein The cap body has opposite first and second ends along the axial direction of the through hole, the cap body being connected with the bottle mouth of the reagent container from the first end, and the puncture membrane being integrally formed at the second end of the cap body.
5. The bottle cap according to claim 1, wherein The through hole comprises a first hole and a second hole in communication with each other, the first hole having a larger diameter than the second hole, so that a step surface is formed at the connection between the second hole and the first hole and faces the first hole, the puncture membrane being arranged in the first hole and sealingly connected with the step surface and / or the hole wall of the first hole, and the cap body being connected with the bottle mouth of the reagent container from the first hole.
6. The bottle cap according to claim 1, wherein The cap body is divided into a first section and a second section along the axial direction of the through hole, the cap body being connected with the bottle mouth of the reagent container from the first section, and the puncture membrane being arranged at the second section or at the connection between the first section and the second section; wherein the outer diameter of the second section is smaller than the outer diameter of the first section.
7. The bottle cap according to claim 1, wherein The cap body is divided into a first section and a second section along the axial direction of the through hole, the cap body being connected with the bottle mouth of the reagent container from the first section, and the puncture membrane being arranged at the second section or at the connection between the first section and the second section; wherein the inner wall of the through hole corresponding to the first section comprises a continuous portion and a hollow portion, the hollow portion being away from the second section, and the continuous portion being close to the second section and being used for sealingly connecting with the bottle mouth of the reagent container.
8. A closure as claimed in any one of claims 1 to 7, wherein The puncture membrane is provided with a slit, which is cracked under the extrusion of a pipette needle to allow the pipette needle to pass through the puncture membrane, and is closed to seal the through hole after the pipette needle is withdrawn; wherein the length of the slit is less than the diameter of the through hole.
9. The bottle cap according to claim 8, wherein The puncture membrane is provided with a plurality of slits intersecting at the central axis of the through hole. And / or, the ratio of the length of the slit to the thickness of the puncture membrane is greater than or equal to 6.
10. A reagent container characterized by comprising: The reagent container comprises a container body, which is configured to form a receiving cavity and a bottle mouth, and the bottle mouth communicates with the receiving cavity; The reagent container further comprises the bottle cap according to any one of claims 1-9, which is capped on the bottle mouth.